Arrangement of devices to sever and remove canopy wall sections from aircraft cockpits

Abstract

An arrangement of devices for removing wall parts of a cockpit canopy in emergencies, with fuses being mounted in such a manner to the canopy glass for the purpose of the rapid removal of glass parts from the ejection path of a person to be rescued. Glass halves are formed by severing specific glass sections while maintaining a bending line along a specific bending path in the area of the longitudinal glass edges.

What I claim is: 
     
       1. In an arrangement of devices for severing and removing of a canopy of a cockpit to evacuate crew members in emergencies, especially the canopy glass of aircraft, the improvement comprising at least one fuse segments extending over at least nearly the entire length (L) of the canopy glass in the area of and along the longitudinal plane of symmetry (E--E) thereof substantially from a forward edge to a rear edge of the canopy, for severing the canopy along a central apex portion;   additional fuse segments extending over the entire or nearly entire length of the forward and rear glass edges:   means for concurrently igniting said afore mentioned fuse segments; and   longitudinal cockpit glass edges establish bending pivot supports for glass halves in the areas of clamping, the glass halves being defined by rupture lines along said fuse segments;   means for maintaining connection of the longitudinal glass edges until rupture takes place in the clamping area with a delay with respect to the ignition of the said fuse segments;   means mounting further fuse segments along the longitudinal glass edges on both sides of the plane of symmetry: and   ignition delay devices connecting these further fuse segments to an ignition system common to all fuses.   
     
     
       2. An arrangement according to claim 1 including at least one fuse segment (6 and 7) each mounted in the longitudinal direction on both sides and in the vicinity of the plane of symmetry (E--E). 
     
     
       3. An arrangement according to claim 1 in which particular ones of the additional fuse segments in the area of the rear glass edge have a limited longitudinal size starting from the plane of symmetry (E--E) in the direction of the longitudinal glass edges (3; 22, 23).